Straw-stacker.



W. F. MAOGREGOR.

STRAW STAGKBR.

APPLIUA'IION FILED OUT. 31, 1903.

Patented Nov. 10, 19084 6 HBBETB-8HEET l.

W. F. MAUGREGOR.

S'IRAW STAUKLRA AMLMIA'MUN FILED 001', a1, 1903,

Patented Nov. 10. 1908v 6 SBEETS-SHEET 3.

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W. F. MAUGREGOR.

STRAW STAGKBR.

APPLIUATloN MLM) U01-.31, 19m.

Patented Nov. 10, 1908.

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BTRAW STAGKEB.

APPLIOATION num 001231, 1903.

Patented Nov. 10, 1908.

6 SHEETS-SHEET 5.

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W. F. MAUGREGOR.

STRAW STAGKER.

APPLIOATIUN FILED 00131, 190:11A

Patented Nov. 10, 1908. B SHEETS-SHEET 6,

UNITED STATES STR AW-STACKER.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Application filed October 31, 1903. Serial No. 179,278.

To all whom 'it only comfrfra:

ie it known that l, liVaLLaon F. MAC- (innoon, a citizen of the United States, and a resident of the city and county of Racine, in the State of lllisconsiin, have invented certain new and useful lml'irovemcnts in Htraw-Hackers, of which the following is declared to be a full, complete, and exact description.

The improvement relates more particulai-ly to that type of straw stackers in which they straw is delivered from the tl'ireshing machine by a blast of air to a mechanical conveyor whereby it is deposited on the stack. and the invention consists in the features of improvement hereinafter described, illustrated in the accmnpanying drawings and particularly pointed out in the appended claims.

1n the drawings, Figure 1 is a side elevation of the improved straw stacker with its outer end broken away. Fig. 2 is a longitudinal section thereof. Fig. 3 is a plan View. Fig. '-fl is a detail section on line 1*4 of Fig. 1. Fig. 5 is a plan view of the turntable and operating mechanism for the improved stacker. Fig. 6 is a detail section of the turn-table. Fig. 7 is a side elevation of a inoditied and preferred form of the improved stacker. Fig. S is a detail plan view of parts shown in Fig. 7. Fig. 9 is a longitudinal section of the form of stacker shown in Fig. 7. Fig. 10 is a cross section on line iti-io of Fig. o.

In the accompanying drawings the invcntion is shown as applied directly to a threshing machine, although manifestly the invention may be employed in an independent structure.

At the rear of the threshing machine (not shown) is mounted the usual platform 12 through which extends the outer end of the blowerpipc 13. Blower-pipe 13 leads from any usual form of discharge or blast-fan (not shown) of the threshing machine and its outer end extends (see Fig. 4) slightly above the platform 12, and is provided with a spherical tern'iinal 14. The latter is preferably formed of separate sections secured together and to the platform l2 by brackets 15.

The turn-table 1G surrounds the outer end of the blower-pipe in concentric relation, but is spaced apart therefrom and sustained to rotate upon the platform 12 by the antifriction ball-bearing 17. At Vits upper end and in line with the axis of the spherical terminal lalof the blower-pipe, the turntable 1G vis provided with seats 1S which receive the pintlcs lf) of the delivery-chute 20. The pintles l?) are arranged at dian'ietrically opposite points so that the delivery chute is pivoted to the turn-table in line with the axis thereof and in line with the axis of the blowerpipe. The latter is thus sustained to oscillate horizontally with the turn-table but may be vibratcd in vertical direction independently of the tln'n-table. The inner end ofthe delivery-chute is curved downwardly, as indicated in elbow fashion, and the throat section slidably fits the spherical outer end 14 of the blower-pipe so as to shift universally thereon as the delivery-chute swung in vertical and horizontal direction.

The main portion of the delivery-chute is preferably rectangular in cross-section and is preferably of greater area in cross-section than the blower-pipe 13. The throat section 21 is preferably formed of separate rigid sections of cast metal having considerable strength and bolted together7 as indicated in the drawings. The end of the contracted throat section is circular in outline to slidably tit the outer end of the blowerpipe, but as shown in Fig. LIl its outer larger end is of rectangular outline to contact with the main 'body of the delivery-chute.

At the lower and outer portions of the de livery-chute extends the mechanical conveyer or endless traveling raddle which may be formed of a wide strip of continuous webbing supported at intervals on cross-rollers. This mechanical conveyer however preferably comprises the endless side belts 22 connected by the cross raddle strips 23 and arranged to move over the floor 24; which extends lootwccn the side Walls of the chute 20. At the outer end the belts 22 pass over idlerrolls Q5 mounted upon a shaft Q6 between the side walls of the delivery-chute. At the inner end the belts pass over the drive-rolls 27 mounted upon a shaft Q8.

The elbow portion of the delivery-chute is preferably formed With impervious walls and the lower curved portion 2S) extends over the inner end of the conveyer so that the straw from the blower-pipe will be delivered onto the endless raddle. The upper wall of the delivery-chute or mechanical conveyor section beyond the elbow, is l'ornied olA a per l'orated `screen CS() to pcrlnit the escape o1i the air-blast and ao that the straw, instead oll being blown through the chute. settles upon the traveling eonreyer and is `slowly and unil'orinly delivered to the stack. The expand ed ueclt portion and the enlarged cross .secn tional area olI thc delivery-chute also assista in thus dissipating the air-blast which delivers' the .straw through the blower-*pipe and elbow section o1' the deliverya'hute onto the mechanical eonveyer.

To assist in the uniform delivery olA the .straw onto the stark, a forwardly inclined retarding plate 31 is provided. lliis plate is preferably i'orined oll a perloratefl screen and is preferably hinged to the forward end of the perl'orattal top screen il() and yieldingly supported by springs 32 connected to the retardingvil screen and to uprightis 3325 counected to the side walls o1' the chute.

To i'urther insure unil'orui deliveiy o1'Y the straw, [messer-bars 25-1, are preferably hinged to the foriva rd end oi' the retarding screen $31 and extend forwardly over the outer end ot the endless eonyeyer and in .substantially parallel relation therewith. The. outer endsl of the presser-barsl are sustained by straps 35 frein supports 3G, which are secured to and extend upwardly from the sides ot the chute. The Straps 35 are preferably .secured to the supporte 3G by knuckles 3T so that the presser-bars may be adjusted as desired. These presser-bars rest upon the straw at the outer end of the traveling conveyor and insure a uniform, even delivery onto the stachv A portion of the top-wall of the deliverychute 2O at its` rear end, is preferably formed of a hinged. outwardly opening section 30 which may be lifted to give access to the interior of the chute if at any tiine the strawv becomes clogged therein. This section 30- is also preferably perforated, as shown.

The turn-table 1G carries a pair of laten ally projecting arms 38 between the outer ends of Which is journaled a shaft 39 carrying rollers 40. Brackets 41 are secured to the cast iron neck or throat 21 of the delivery-chute and support the Windlass shaft 4Q. Ropes 43 are secured at one end to the shaft 39, extend over guide-rolls 44 upon the windlass shaft. 42, thence over the rolls 40 upon the shaft 39 and back to the winding rollsl 45 upon the Windlass shaft. The Windlass shaft 42 is rotated in either direction by a Worm 46, `iournaled on one of the brackets 41 and meshin with the teeth of a gear 47 fixed to the Wlndlass shaft 42. The worm 46 is preferably provided with a hand-wheel 48, as indicated. By this arrangement the deliverychute and mechanical eonveyer may be vibrated vertically in any position of the supporting turn-table.

By forming the neck or throat portion 21 of rigid cast metal,4 the vertically Vibrating windlass ropes may extend between lhc outer end ol' the rigid portion and the turn-table1 thusy doing away with the necessity oll the cuinlaraolne, vertically projecting windlass l'ranic on the turlrlable now generally e|nphry'tal.

'lluwturirtableanddelireryahutearepret'- erahly oseillated through the iuediuln olI a wornrgear "ltl l`or|ned upon the turuftable, which meshes with the worui fit1 ou a cross shalt :'il. Hhal'l ,'il (sec [tigl ,3) iajournaled upon thc platlorni li! and is prel'erably provided at one end thereol' with a pair olI oppositely l'aring beveled piuious` 5L arranged lo be alternately coupled to the shalt by a clutch Sii, automatically operated in the usual lnanner by a lever or bell-crank 511. leieled gearsl 32 are driven by a third lieveled gear .35 upon a. `short shaft 5U journaled on the upper side o1' the plat'lorin 1 2. 'lhis latter Ashall is driven through the iuediuin o1l a worin-wheel 57 and worin 5b troni a cross shalt o!) jourualed, as inos't plainly indicated in Fig. i upon thtl under side otA the plat'lorni 12. lYorin-n'heel 5T loosely inounted upon the shaft 5t but it inay be coupled thereto by a clutch ttl and having a shift lever (5l.

,A pulleyehal't o2 is journaled upon the upper side ot the platform 12 and carries at its outer end a pulley (5&5 which inay be belted to the drive shat't ot' the threshing inachiue. lnternieshing gears G4 and G5 are mounted i'efspta'-tively upon the cross-shaft 59 and the pulley shait GQ.

.For driving the endless; mechanical coni'eyer in all positions thereofV` an annular doiible-'fzmed rack or gear-ring G7 is preferably employed. This geaira'ing is preferably torined o1" separate upper and lower horizontal sections bolted together and is Sustained in concentric relation upon and Utl about the upper portion ot the turn-table by a row of bearing-balls (3S traveling in a .suitable annular raee- Yay in the face of the turn-table and in a emresponding race-way formed between the sections ol the gearing7 .so that the latter niay revolve indepcndently of the turn-table.

Suitable drive connections are interposed between the gearing and the mechanical conveyer, which preferably comprise a short stub shaft G9 journaled in a laterally projeetingi` bracket 70. tixed to the upper por-A tion of the turn-table in line with the pintle connections 18u19 and provided at its inner end with a beveled gear 71 meshing with the teeth upon the upper 'face ot the gear-ring. A sprocket 72 upon the outer end of the shatt G9 is connected by a sprocket-chain 73 with a second sprocketwvheel 74, fixed to the end of the shaft 28, which carries the drive` rolls 36 of the endless conveyor.

A short shaft 75 radially disposed with reference to the turntable 16 and gear-ring eea-invia (37, carries al. its inner end a beveled pinion Tt vvliieb meshes with the teetli upon under side olA tlio nfl-ar ring` tu'. To is lotated in tbe sante plane but onty oll line with tbe pulleyy shalt tilt and is leared thereto b j a pail' olA beveled gears ifi-R lily the nieellanisin deseribed`r tbe uleelulnieal eonveyer n|a y be driven in all positions oll the deli venyadrnte.

lt will be noted that the deliverv-ebnte or ineehanieal eonvelver seetion is removably; sustained upon the turntable and is in ed operative relation with tlie blo\\ferpipe so that. il' desired, a deliverlrellule entirely |n1elunatiein ebaraeter, rould be readily sustained tlleret'roin ilL desired.

vln the prel'erred l'ortn olI the` invention. the arrangement oll the blo\\erpipe, turntable and deliveryachute is similar to that atrend)r deseribeel, but. the nleehanieal conve ver is extensiblyv mounted upon the ehute so that a wider staehV may be. l'ornted ln this ('.onstruetion` see Figs. to ttl) the Ineeltaniral eomever is earried by the delivery-elude to swing` horimntallv and vertieally therewith as bet'ore, but theraddlebelts 22, rolls 25 and 2T and the eonvever lloor El, are extensiblv lsustained thereon between the side pieees 7T. rlhese side pieces are provided at their upper edges with inwardly projecting` rails TS which extend between oooperating pairs oli sulu'iortinlel and guide rolls T9, journaled upon the sides of theI de livery-ehnte 20. 'lhree pairs ot' these rolls are provided upon eaeh side of the chute., but any suitable nuniber niav be provided as necessary.

(lrosssshafts Sti are journaled between uprights S1 at` the forward and rear ends of the deliverymfhute 20 and Carries sproeliets 82 over which passes the endless chain Sfl. The Chain 83 is connected, as shown. to a bale 84 fixed to and projecting upwardl)T from the side pieces TT of the extensible eenveyer and the shaft'` 82, at the inner end of the Chute, is provided with a eranhY S5 by which the chain S3 may be shifted in opposite directions to move the extensible eonveyer. .ln this forni the supporting` strapsl 35 for the presser-bars 34 are connected to the supports 3G, which is secured to the side pieces 77 of the extensible conveyor. The straps 35 are provided with loops SG arranged to slide upon rods 87, fixed to the pressenbars 34. The lower plate 99 of the delivery-chute in this form of the invention, projects forwardbf so as to extend over the inner end of the eonveyer, whatever the position of the latter, and so that the straw from the blower-pipe will be delivered onto the endless traveling raddle.

Extensible drive-eoi'ineetions are provided for the endless eonveyer which preferably comprises a pair of arms 88 (see Figs. 7 and 8) pivoted upon the shaft G9 and a pair of pivoted arms Ht) pivolallv mounted upon the drivesbal't 2H olA tlte endless eonvever. 'l'lie upper ends ot' the :trots` HH and Hit are piv otall v eonneeted together b v a erorw` stia lt ttt) upon whieb ir; uiounted a` pair olA upon-liet vllt-els lll and ft2. ebain t't ronneetfs: tbe sproeltet lil upon tlte .shalt litt tvitli the Sprocket. itl and :t elntin .l'l eonneets tlte sproeliet ft2 with tbe s|no:l et\\beel "it upon tlIe. dri\e slust't Litt oll tbe eonvever. "l`be ai rangement and eonslruetion ol. tbe parts in otlnl' I'vfepeels is sitnilut to lbat previouslyy deseiibed.

ln llle niodilied l'ornn it vvill be seen that the driving' nuwrltanisni t'or the nua-.hantent ronveyer is so arranged that the latter |na \`y be. operated in all positions oli the deliveryY ehute and in all positions oll tbe extensible conveyor with rel'erenee thereto.

lt is obvious thatV numerous` ehanges lnavv be iliade in the details ol strut-ture without departure t'roni the essentials` ol. the invention and that l'eatures olI the. invention |na v be employed without its adtuition as an en tiretv.

Having described inv intention, what l elaini as new and desire to seeure b v Letters lateut, is:

l. 1n stranfstaeliers, the eonibination wit l1 the blower-pipe., of a. turn-table at the outer end oi said pipe, a. vibratable delivery-chute sustained by said turn-table and slidabl)7 litting the end of said blevvenpipe to shitt universally thereonr` and a ineehanieal ronrever carried b v and etn'ilwrating;l with .said ehute to deliver the straw therefrom.

2. ln strawstaehers, the eoinbination vvith the blo\ver'pipe, of a turn-table at the outer end ot' said pipe, a deliverjr Chute sustained from said turntable and slidably fitting' the end of said blower-pipe to shift univers-all)Y thereon, an endless travelingconveyor earried by said Chute to deliver straw therefrom, a `rear sustained eoneentrieally with said turntable, and rotatable independeiitl)Y thereof, drive connection between said `rea r and said endless eonveyer and means vtor drivingi said gear.

Il. ln straw-starkem.the eoinbiinttionwith the blower-pipe, o1" a turn-table at'. the outer end of said pipe, a delivery-elnite arranged to receive straw from said blower-pipe and luiviuan pintle eonnertions with said turntable, a lneehanieal eonveyer rarried by said ehnte to deliver straw theret'roni, a ringg'eai.' sustained eoneentri(l with said turntable, a shaft. driven by sa id gear and earried by said. turntable in line with said pintle- Connections, and drive eonneetions between said shaft and said conveyor.

11.-. ln straw-st'aelers. tbe eolnbination with the blower-pipe, ot a turndable eoneentrieally sustained at the outer end thereof, a delivery-chute havine` pintle eonneetions with said turntable 1n line with the axis llt) to receive straw from said blower-pipe, said delivery-cl1nte having on one side adjacent its inner end, :1. hinged, outwardly opening section.

IH. ln straw-staekers, the combination with the blower-pipe, oill a turn-table at the onter 111d ot said pipe, f vertic:1ll v-vihr:1t' able delivery-ehnte removably swiveled Vnpon said tnrn-table, a` 1111-eha11i1^al conveyer carried bv said chute to deliver straw theret'rom, :1nd iudel'iendent means At'or driving` said ronvelver and l'or driving said turntable.

ttt. ln str:1\\'st:11^kers. the combination with a blower-pipe, otE a 1lelivery-1fl1nte a1'- ranged to receive straw trotn said pipe and an extensible eonveyer to deliver straw there- I'ronl` 2o. ln straw-stachers, the co1nbi11ati1n1 with a blower-pipe, ot a delivery-chute arranged to receive straw theretn'nn, :1n extensible n'leehanical conveyer arranged to deliver straw from said chute, said. conveyer beingl movable lengthwise with respect to said chute and being supported t'o oscillate therewith in vertical and horizontal direction.

2l. In straw-stackers, the combination with a blower-pipe and a delivery-chute arranged to receive straw therefrom, of a mechanical conveyer extensiblv suspended 'rom said chute and means whereby said conveyer mayY be shifted lengthwise of said chute.

22. In straw-stackers, the combination with a blower-pipe, of a delivery-chute arranged to receive straw therefrom, a mechanical. conveyer and rails and anti-friction rollers arranged to extensiblv support said conveyer upon said delivery-chute.

23. In straw-stackers, the combination with a blower-pipe, ot an extensible, vertically and horizontallj,T vibratable mechanical conveyer arranged to receive straw from said pipe and an extensible `gearing mounted to swing with said conveyer for driving the same.

Q4. In straw-stackers, the combination with a blower-pipe, of a vertically and horizontallltT vibratable delivery-chute arranged to receive straw from said pipe, a mechanical convever arranged to swing with. said chute and shift longitudinally with respect thereto, a gear concentrieally arranged at the outer end of said blower-pipe and an. extensible drive-gearii'ig between said gear and said conveyer, said extensible gearing being mounted to swing with said chute.

Q5. In straw-staclrers, the combination with a pneumatic delivery-chute, of an extensible conveyer for receiving straw from said chute, a gear ring adjacent the inner end of said chute and extensible gearing mounted to swing with said chute connecting said gear ring with said extensible conveyer.

2G. In straw-stackers, the 1o111hi11ation with a` pnelnnatic deliverv-rhnte and :1 turntable for supporting said chute, olI an extensible 1ne1hanical eonveyer l'or receiving straw from .said ehnt'e and 111ec|1anisn1 for impartingl lnovenlent to said conveyer comprising a gear ring located at t h1-y hase olI said chnte,tl1c gear meshing` with said gear ring, a support tor said gear mounted on the turntable and suitable extensible connections between said gear and the 1111111'15111.

L17. ln straw-stachers, the combination with a pneumatic delivery-chute and a turntable for supporting said chnte, ot an extensible mechanical conveyor t'or receiving straw from. :said chute and 111e1hanis1n for imparting movement t'roni said conveyer comprising a gear-ring located at the base of said chute, a gear meshing vwith said gearring, a. support tor said gear mounted on the turn-table sprocket-chains and wheels connecting said gear with the convever and pivoted arms ior supporting said sprocket chains and wheels.

In straw-stackers, the combination with a blower-pipe, ot a turn-table at the outer end of said pipe, a delivery-chute pivotally sustained upon said turn-table and a1'- ranged to receive straw from said blowerpipe, an endless raddle cooperating with said delivery-chute to deliver straw therefrom, a carrier-frame for said raddle extensibly mounted upon said chute and means for driving said endless raddlc in all positions ot. the chute and in all positions of the raddla-carrier` 29. In straw-stackers, the combination with a blower-pipe, of a turn-table at the outer end of said. pipe, a delivery-chute pivotally sustained upon said turn-table and arranged to receive straw from said blowerpipe, an endless raddle cooperating with said delivery-chute to deliver straw therefrom, a carrier-:trame for said raddle extensibly mounted upon said chute, a` gear-ring sustained concentric with said turn-table but rotatable independently thereof and extensible gearing between said gear-ring and said endless raddle.

30.111 straw stackers, the combination with thc blower-pipe, of a turn table sustained concentrically at the outer end of said pipe, a mechanical conveyer pivotallT connected to said turn-table at diametricallv opposite points and arranged to receive straw from said blower-pipe, a gear for operating` said conveyer carried by said turntable in line with the pivot connections between the turn-table and mechanical conveyer and means for operating said gear, substantially as described.

31. In straw stackers, the combination with the blower-pipe, of a turn table surrounding the outer end ot said pipe, a delivery cluite pivoted to said turn-table in 

